Google has a lot of images matching search keyword "dell cpu fan pinout" for 5-pin option, you can reference your original cooler to make sure it it matches (ground, 12v, PWM signals for sense/tachometer and control), might need some wire swaps.

@FanMan 

@sam55todd 

I use Pocaton Dell Fan converters B073XJV5L9

No idea about the model you mention.

Standard Fan Pinout and colors

@speedstep It looks like we have identical converters. Only that mine is of the brand Ronyaoko. Did you rewire yours?

@FanMan 

@sam55todd 

Why would I buy an adapter then re wire it?

What is on each wire can be tested with meter as well as scope.

1TD00 cpu fan assembly

The wire order is clearStandard 4 pin wiring and colors

So, I've managed to pop out one of the cables from the female connector in the converter just using a wooden toothpick, labeled "MWX". But how do I re-insert it? Does it need some tool?

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